Impact Of IMT In Patients With COPD: What Is The Evidence?

“Meta-analysis including 32 randomised controlled trials on the effects of inspiratory muscle training (IMT) in chronic obstructive pulmonary disease (COPD) patients was performed.”


“In conclusion, IMT is an effective treatment modality in COPD patients to improve respiratory muscle strength and endurance, resulting in reductions of dyspnoea and improvement in functional exercise capacity and health-related quality of life. Patients with more advanced muscle weakness seem to be better responders, especially when considering IMT in addition to general exercise training.”

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Effect Of Respiratory Muscle Training On Exercise Performance In Healthy Individuals: A Systematic Review And Meta-Analysis

“Two distinct types of specific respiratory muscle training (RMT), i.e. respiratory muscle strength (resistive/threshold) and endurance (hyperpnoea) training, have been established to improve the endurance performance of healthy individuals. We performed a systematic review and meta-analysis in order to determine the factors that affect the change in endurance performance after RMT in healthy subjects.”


Respiratory muscle training improves endurance exercise performance in healthy individuals with greater improvements in less fit individuals and in sports of longer durations… All types of respiratory muscle training can be used to improve exercise performance in healthy subjects but care must be taken regarding the test used to investigate the improvements.”

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Systematic Review of IMT After Cerebrovascular Accident


Systematic Review of Inspiratory Muscle Training After Cerebrovascular Accident
Martín-Valero R, De La Casa Almeida M, Casuso-Holgado MJ, Heredia-Madrazo A.

The objective of this Systematic Review, published in Respiratory Care (November 2015), was to “examine levels of evidence and recommendation grades of various therapeutic interventions of inspiratory muscle training in people who have had a stroke”.

Studies of relevance were searched for in MEDLINE, PEDro, OAIster, Scopus, PsycINFO, Web of Knowledge, CINAHL, SPORTDiscus, DOAJ, Cochrane, Embase, Academic Search Complete, Fuente Académica, and MedicLatina. Out of the 20 articles identified, 6 of these studies were found to be relevant to this review.

The Review concluded that more long-term studies are needed and “It is necessary to apply respiratory muscle training as a service of the national health system and to consider its inclusion in the conventional neurological program.”

Read the Systematic Review here >